The GRACO 803918 is a packing O-ring made from Viton material, designed to provide a reliable seal within various GRACO spray equipment. Its primary function is to prevent leaks and maintain pressure integrity in pump and spray systems.

Key Features:

• O-Ring
• Viton (fluoropolymer elastomer)
• Designed for use in GRACO spray equipment; specific models not listed
• High chemical resistance
• Durable sealing performance
• Suitable for demanding spray applications

Applications:
Used in GRACO spray foam and paint systems to seal moving parts and prevent fluid leakage.

Installation Notes:

• Using genuine GRACO O-rings ensures optimal fit, performance, and longevity of the equipment.
• Ensure equipment is depressurized before installation
• Inspect O-ring for damage prior to installation
• Lubricate O-ring with compatible lubricant if recommended by the manual
• Follow manufacturer’s guidelines for replacement intervals
• Regularly inspect O-rings for wear or damage
• Replace O-rings at recommended intervals or when leaks are detected
• Use only genuine GRACO replacement parts for best results